070-503 Free Dumps Study Materials
Question 19: You are creating a Windows Communication Foundation service by using Microsoft .NET Framework
3.5.
The service contains the following code segment.
<ServiceContract()> _
Public Interface IMyService
<OperationContract(IsOneWay:=True, _
ProtectionLevel:=ProtectionLevel.None)> _
<TransactionFlow(TransactionFlowOption.Allowed)> _
Sub DoSomething()
End Interface
You need to ensure that the DoSomething operation can participate in transactions.
Which code segment should you use to replace the existing operation contract?
A. <OperationContract( _
ProtectionLevel:=ProtectionLevel.None)> _
<TransactionFlow(TransactionFlowOption.Allowed)> _
Sub DoSomething()
B. <OperationContract( _
ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
<TransactionFlow(TransactionFlowOption.NotAllowed)> _
Sub DoSomething()
C. <OperationContract(IsOneWay:=True, _
ProtectionLevel:=ProtectionLevel.EncryptAndSign)> _
<TransactionFlow(TransactionFlowOption.Allowed)> _
Sub DoSomething()
D. <OperationContract(IsOneWay:=True, _
ProtectionLevel:=ProtectionLevel.Sign)> _
<TransactionFlow(TransactionFlowOption.Mandatory)> _
Sub DoSomething()
Correct Answer: A